Technical description and composition of the SUPRA STV-LC3225AWL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC3225AWL
Chassis / Version: V4L07
Panel: TH315B041 R213E
LED backlight: WD315-5620TML-0607 (L / R) Rev_B
T-CON: ST3151A04-1
LED driver (backlight): integrated into PSU
PWM LED driver: BIT3251 // OB3350CP
MOSFET LED driver: D452, MDD1501, D478
Power Supply (PSU): MP123T-24TL MEGMEET Rev: 1.1
PWM Power: PWM SOT23-6 LD7535 // LD7750RGR
MainBoard: CV182H-E SMT1204175-1777
IC MainBoard: CPU MST6M182VGC-LF-Z1, SPI Flash W25Q32BV
Tuner: CDT-3SP5I2-37
SUPRA LED
Model: STV-LC3225AWL
Chassis / Version: TP.VST59.P83B 65W17
Panel: TH315B051-MD2
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB3350CP
Power Supply (PSU): integrated into MainBoard
PWM Power: LD7536
MOSFET Power: 7N60
MainBoard: TP.VST59.P83
IC MainBoard: TSUMV59XU, FLASH: 25Q32FVSIG
Tuner: CDT-3NP5I1-10
SUPRA LED
Model: STV-LC3225AWL
Chassis / Version: V4L06 // V5L09
Panel: TB315B201 // TH315B031
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): integrated into MainBoard
MainBoard: CV182H-E // T.MS18VG.71A 12246
IC MainBoard: CAT6354CQ, 25Q32BVSIG
Tuner: CDT-3SP512-37 // CDT-3SP512-36
STV-LC3225AWL Specifications
SUPRA STV-LC3225AWL
General recommendations for TV LCD LED repair
Repair of electronic equipment usually begins with its external examination and diagnosis of a malfunction. In this case, you should inspect all the internal components of the SUPRA STV-LC3225AWL TV, as well as the external elements of the case. Visible damage to elements can sometimes indicate the direction of searching for a defect even before the necessary measurements are taken. If ring cracks are found in the soldering of the element terminals or broken connecting paths, swollen capacitors or charred resistors - all this may be characteristic signs of the causes or consequences of an already known typical malfunction.
In cases where the SUPRA STV-LC3225AWL TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operation when turned on, the BSF-P1320201B power module is most likely faulty // BSFA120328CB or there is no power supply to the processor on the motherboard (a typical defect of some SUPRA TV models). In the absence of swollen capacitors of the secondary rectifier filter, diagnostics of the power supply should begin with checking the fuse and, if it breaks, it is necessary first of all to check all power semiconductor elements of the primary circuit - diodes and transistors for the likelihood of an avalanche or thermal breakdown.
It should be borne in mind that in the practice of repair, it is extremely rare for key transistors in switching power supplies (SMPS) to fail without reasons that should be looked for by checking other components, for example, a key breakdown can provoke faulty elements of damper circuits, or dried electrolytic capacitors or broken primary resistors power supply circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM regulator microcircuit are subject to verification, which it is desirable to check by replacement.
If, when SUPRA STV-LC3225AWL is turned on, there is no image, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the LED circuit of the TB315B201 panel backlight, or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the common power supply.
To check the health of the LEDs and contact connections in their power supply circuit, it is necessary to disassemble the panel.
To identify an open circuit in the LED lines without disassembling the panel, a current source is required. It is impossible to open the junctions connected in series with a simple multimeter; a voltage of several tens of volts is required.
In cases of attempts to repair the CV182H-E motherboard, it is necessary to check the performance of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating.
In cases of complex MB (SSB) repairs and with the necessary skills and equipment, it may sometimes be necessary to replace its CAT6354CQ, 25Q32BVSIG chips and other possible faulty components. Malfunctions associated with the use of BGA soldering technologies are usually easily diagnosed by the warm-up method.
If you suspect a malfunction of the CDT-3SP512-37 tuner, first of all, you need to make sure that the supply voltage of the varicaps (30-33V) is available at the corresponding output of the tuner, as well as other voltages supplying it.
Once again, we remind TV users: do not attempt to repair yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repairs only to professionals with sufficient experience in the field of electronic repair.
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC3225AWL, Main:CV182H-E
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC3225AWL(V7L11), MAIN: TP.VST59.P83, PANEL TX315B3HB-MD2
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC3225AWL, Main: T.MS18VG.71A 12246, Panel: TH315B031
MODEL STV-LC3225AWL BLACK VERSION V4L07;Panel: TH315041, ST3151A04-1;
Main: CV182H-E SMT1204175-1777;
Backlight: WD315-5620TML-0607(R)Rev_B , WD315-5620TML-0607(L)Rev_B;
Power: MP123T-24TL KB5150 MEGMEET Rev:1.1
The appearance of MainBoard TP.VST59.P83 is shown in the figure below:
TP.VST59.P83
The TP.VST59.P83 motherboard is combined with a power supply module and is an independent device based on the TSUMV59Xxx multifunctional processor. Repair of such a board must begin with checking the power supply elements, as well as the operability of voltage converters and linear stabilizers necessary to provide power to certain processor nodes, in particular: core power supply + 1.2V, built-in DDR + 1.8V memory and stand-by mode node. by 3.3V. The supply voltage of the LCD panel is 5V or 12V, depending on the type of panel used, it is necessary to check directly on the LVDS connector.
CV182H-E can be used in TVs:
FUSION FLTV-32F18 (Panel TC315FJE1), FUSION FLTV-32L22B (Panel MT3151A05-2), SUPRA STV-LC3225AWL (Panel TH315B041 R213E), SUPRA STV-LC3225AWL (Panel TB315B201), SUPRA STV-LC4699460FLH
Main features of SUPRA STV-LC3225AWL device:
Installed matrix (LED panel) TB315B201 or TH315B031.
To power the backlight LEDs, a converter combined with the CV182H-E main board is used.
The power module is combined with the MainBoard and is made according to the AC / DC flyback converter circuit.
MainBoard - the main board (motherboard) is a CV182H-E module, using CAT6354CQ, 25Q32BVSIG and others.
Tuner CDT-3SP512-37 // CDT-3SP512-36 provides reception of television programs and tuning to channels.
Information from an alternative source:
SUPRA STV-LC3225AWL Version V4L08
Panel type (matrix): TP315BT01
Motherboard: CV182H-E, 25Q32BVSIG, CAT6354CQ, TPA3110LD2, Tuner: CDT-3SP512-37
T-con: DUNTK5004ZZ E222034 1218, NT71168MFG, 24C64F, MAX17126
PSU & Invertor: MP123T-24TL, LD7750RGP, OB3350CP, BA2E2G, BA1V9B X2
Remote control: RCF3b
SUPRA LED TV STV-LC3225AWL with LCD TB315B201, 32 "(81 cm) in 16: 9 format. The required screen brightness of 400 cd / m² is provided by LED backlighting. Contrast - the ratio of maximum brightness to minimum is 3500: 1. Dynamic contrast ratio of 70,000: 1 is achieved by special control of the LEDs depending on the illumination of areas in the scene.This model uses an LED panel with an edge LED backlighting - Edge LED.It is possible to view broadcasts and films and images in high quality HD at a resolution of 1366x768 pixels in 720p (HD Ready) graphics standard. Input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal shaping occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported formats multimedia files: MP3, WMA, MPEG4, JPEG.
The power of the acoustic system of sound 30 W (2x15 W) is provided by two speakers. Uses NICAM stereo signal processing system and Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x2, component, SCART, RGB, VGA, HDMI x3, USB. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
The power consumed by the TV in operating mode from the network is 90 watts.
Overall dimensions: 978x630x148 mm.
TV weight: 14.3 kg.
Attention! The panel TB315B201 of the SUPRA STV-LC3225AWL LED TV is an expensive and unreliable element.
Do not allow any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV non-repairable.